Remove external dependency for config handling

ctrl/internal/config.go

 package config
 
-import (
-	"github.com/caarlos0/env/v11"
-)
-
 type Config struct {
 	AddrBind string
 
@@ -12,10 +8,7 @@ type Config struct {
 }
 
 func GetConfig() Config {
-	cfg, err := env.ParseAs[Config]()
-	if err != nil {
-		panic(err)
-	}
+	cfg := Config{}
 
 	return cfg
 }

go.mod

@@ -3,7 +3,6 @@ module code.fbi.h-da.de/danet/costaquanta
 go 1.24
 
 require (
-	github.com/caarlos0/env/v11 v11.3.1
 	github.com/google/uuid v1.6.0
 	github.com/grpc-ecosystem/go-grpc-middleware/v2 v2.3.1
 	github.com/stretchr/testify v1.10.0

go.sum

-github.com/caarlos0/env/v11 v11.3.1 h1:cArPWC15hWmEt+gWk7YBi7lEXTXCvpaSdCiZE2X5mCA=
-github.com/caarlos0/env/v11 v11.3.1/go.mod h1:qupehSf/Y0TUTsxKywqRt/vJjN5nz6vauiYEUUr8P4U=
 github.com/cenkalti/backoff/v4 v4.3.0 h1:MyRJ/UdXutAwSAT+s3wNd7MfTIcy71VQueUuFK343L8=
 github.com/cenkalti/backoff/v4 v4.3.0/go.mod h1:Y3VNntkOUPxTVeUxJ/G5vcM//AlwfmyYozVcomhLiZE=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=

kms/internal/config.go

 package config
 
-import "github.com/caarlos0/env/v11"
-
 type Config struct {
 	AddrBind string
 	CtrlAddr string
@@ -11,10 +9,7 @@ type Config struct {
 }
 
 func GetConfig() Config {
-	cfg, err := env.ParseAs[Config]()
-	if err != nil {
-		panic(err)
-	}
+	cfg := Config{}
 
 	return cfg
 }